Patent attributes
Methods, systems and apparatus for identifying and utilizing content synchronization information are described. Methods for creating and utilizing a synchronization file that can be used to notify users when synchronization availability exists, and to identify ways to repair synchronization unavailability are described. The synchronization file includes a complete set of individual content elements that make up a content item, such as a book, where each content element has an indication whether play-back of an audio version of the content item can be synchronized with the presentation of a corresponding text version of the content item. Methods, systems and apparatus are al'so disclosed for providing the synchronization availability information to the user in a manner that enables the user to increase the benefits of synchronized presentation of the content item.